Doncaster Rovers have signed ex-Chelsea goalkeeper Ross Turnbull on a free transfer and Tottenham defender Bongani Khumalo on a season-long loan deal.
Turnbull, 28, left Stamford Bridge this summer after four years with the Blues.
South Africa international Khumalo, 26, spent last season on loan with Greek side PAOK Salonika.
"I'm very happy that things have worked out and I'm just looking forward to the start of the season," he told the club's website.
Khumalo has not made a competitive appearance for Spurs since joining from SuperSport United in January 2011.
Meanwhile, Doncaster have confirmed the signing of former Brentford forward Harry Forrester.
The Championship club are yet to agree a compensation deal with the Bees for the 22-year-old.